Im trying to find out the obvious problem with some street lights, when i turn them on they light as normal then after 10 minutes they go off then on again, i have been told that it is the external igniter which is at fault but i have changed these and still the flashing happens, so the question is do the lamps fail and make the street light do this?
Sodium outside street lamp faults HELP
- Thread starter markymark2406
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Yes. Lamps start to cycle when they get old. I would try replacing the lamps first.
It is more likely simply the lamp. Not the control gear.
S
saxondale
only done a couple of these but both didnt like to be anything other than horizontal - facing down too low they switched off
are they new ? and have they got inbuilt photocells ?
are they new ? and have they got inbuilt photocells ?
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ok so its very rare for an external ignitor to go tits up then?
If there BC sox lamps
Check the wattage on the lamp ballast and controller,and that they are all compatible
They do not use standard son igniters
There is two or three size lamps that all fit, but not always interchangeble
A dodgy lamp is usually more reddy colour than yellow.
Check the wattage on the lamp ballast and controller,and that they are all compatible
They do not use standard son igniters
There is two or three size lamps that all fit, but not always interchangeble
A dodgy lamp is usually more reddy colour than yellow.
Usually if a lamp is "flashing" then its a SON coming to the end of its life cyce and if you look at the arc tube in the lamp it will be going black and the lamp may look cloudy.
The ignitors dont usually cause this and if they fail the lamp wont strike or if they are not the selfstopping type and the lamp fails they will burn out and it smells awful.
The ignitors dont usually cause this and if they fail the lamp wont strike or if they are not the selfstopping type and the lamp fails they will burn out and it smells awful.
Is sodium a son lamp though
mr streetlighter
mr streetlighter
Could be a SOX low pressure Sodium or a SON high pressure sodium normally the SOX dont flash.
Would you say 10 mins on, 30 mins off is "flashing" (lamp fault)? or would that be a gear fault??
It's just that I've also got some lamps doing this and they are 5+ meters up and a cherry picker will be needed!!
It's just that I've also got some lamps doing this and they are 5+ meters up and a cherry picker will be needed!!
If they were sons, with the expense of getting up there it may be worth changing the ignitor as well as the lamp, depending how many there are
You are right about changing ignitors at the same time. We used to do this on highmast repairs at the last place i worked,Most of the lanterns had the original GEC gear in them from the 60s 400-watt SON-T lamps. We used the Phillips SN58s and the Parmar ignitors.
I've seen you can now get electronic control gear for discharge lamps.
Not used them personally, but might be something for you to look into if it is not the lamps which have failed.
Not used them personally, but might be something for you to look into if it is not the lamps which have failed.
so what happens to the son lamp when it goes into flash mode is it the sodium content breaking down?
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